Financial Information for Operation Segments (Parenthetical) (Detail) (Home Sales and Rentals Operations segment, USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Home Sales and Rentals Operations segment
Segment Reporting Information [Line Items]
Site rental income	$ 10.6	$ 8.1

Site rental income attributable to home rentals that is included in resort base rental income on the consolidated income statement.

No definition available.